baber/WOPTO huggingface dataset:
Patent GB-1453464-A (GB)
Title: Method of removing pole cores from a stack and apparatus for carrying out the method
IPC: G11C5/12
Filed: 1973-11-27
Abstract: 1453464 Separating articles from a stack VYCHISLITE TSENTR SIBIRSK OTDDELEN AKAD NAUK SSSR 27 Nov 1973 [18 Dec 1972] 55042/73 Heading B8S Apparatus by means of which the lowermost pole core in a stack 2 of pole cores may be removed from the stack comprises a pair of wires 4 on each of which a stack 2 is strung, the lowermost pole core in each stack engaging with the face 8 of a stop 1, the wires 4 being secured under slight tension in holders 5, 6 attached to respective levers 10, 11 which are pivotable about an axle 12, so that on clockwise rotation of the lever 10 the part of each stack 2 above its lowermost pole core engages with the face 9 of an additional member 7 mounted on, or integral with, Fig. 4 (not shown), the stop 1 as shown in Fig. 1, so that the lowermost pole core in each stack 2, due to its engagement with the face 8 of the stop 1 is thereby separated from its stack 2, and on clockwise rotation of the lever 11 in a direction to straighten the wires 4 the lowermost pole cores slide down along their respective wires 4 as shown in Fig. 4 (not shown.).
Patent GB-1281939-A (GB)
Title: Method and apparatus for positional control compensation for temperature changes in machine tool spindles
IPC: B23Q11/00
Filed: 1969-11-13
Abstract: 1281939 Temperature compensation GIDDINGS & LEWIS Inc 13 Nov 1969 [18 Nov 1968] 55571/69 Heading B3B The spindle 20 of a vertically movable headstock 10 is axially movable by a numerical control system that includes means for comparing the actual temperature of the spindle with ambient temperature and generating an error signal on the difference to modify the position of the spindle. The spindle is cooled by an oil circulation system comprising reservoir 42, pump 43, supply lines 45, 46 inlet passages and ports 47, 48, collection passages and ports 50, 51 and return lines 52, 53, 55. The return line 53 leads to a sensing unit 40 including a thermistor 61, a heat transfer block (56) (Fig. 4, not shown), a heat sink (60) and adjustable studs (62) which constitute thermal delay paths for heat transference from the heat transfer block to the heat sink. The thermistor 61 is mounted in the heat sink. An ambient sensor unit 41 is mounted on the machine tool remote from the heat generating zones and includes a thermistor 68. The thermistors 61, 68 are connected in series across a D.C. source and a mid-point tapping is fed to an amplifier 71. If the machine tool is located in a temperature controlled room the thermistor 68 may be replaced by a simple resistance. A closed loop compensation circuit is described (Fig. 3, not shown) and includes a second amplifier, a correction servo-motor and a tachometer. In an alternative arrangement for the sensing unit 40, when the thermal characteristics of the heat sink, heat transfer blocks and thermal delay studs are known, they may all be incorporated in a single monolithic block. Machine tool details.-The headstock 10 is movable on vertical ways 11 and includes a motor 12, reduction gears 13 and gears 15, 16, 22 for driving a fixed sleeve 23. A spindle sleeve 26 is in spline connection with the fixed sleeve 23 for longitudinal movement therethrough and the spindle 20 is in spline connection within the spindle sleeve 26. A quill 25 carries the spindle sleeve 26. The spindle 20 can move on its own through the spindle sleeve 26, or move with the spindle sleeve 26 by movement of the quill 25, or in combination of the two movements. A servomotor 31 rotates a lead screw 32 to move the spindle 20 direct, and can also rotate a shaft 34 to rotate a fixed nut on a lead screw to move the quill 25. The quill is mounted in hydrostatic bearings 30.
Patent GB-1137250-A (GB)
Title: Signal amplitude control circuit
IPC: H03G3/30
Filed: 1967-12-07
Abstract: 1,137,250. Automatic-gain control. INTERNATIONAL STANDARD ELECTRIC CORP. 7 Dec., 1967 [9 Dec., 1966], No. 55748/67. Heading H3Q. In an automatic gain - control arrangement signal from source 3 is applied to a bridge network comprising transformer 4 having bifilar secondary windings 6, 7 which form the bridge with adjustable capacitors 8, 9 and varactor diodes 1, 2. Diodes 1, 2 are connected in series, output being taken between their common point 10 and the earthed common point of the windings 6, 7, is applied over amplifier 17 to A.G.C. detector 16. Detector 16 applies a variable D.C. bias to the point 10; the diodes 1, 2 are normally biased over resistors 13, 14 so that the bridge is unbalanced for small signals, and the bias from detector 16 biases the diodes 1, 2 in opposite directions such as to tend to balance the bridge and minimize the output.
Patent GB-1195924-A (GB)
Title: Improvements in Scraper Chain Assemblies for Scraper Chain Conveyors.
IPC: B65G19/00
Filed: 1968-11-29
Abstract: 1,195,924. Endless scraper conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. 29 Nov., 1968 [10 June, 1968], No. 56769/68. Addition to 1,195,923. Heading B8A. A scraper chain conveyer comprises a pair of chains 9, 9<SP>1</SP> formed of short chain sections interconnected by link elements 7 which also serve to space the chains 9, 9<SP>1</SP> and have laterally extending bifurcated ends 5 to mount scraper elements 22. Each scraper element 22 comprises arms 23 joined by a bridge portion 24 extending over the link elements and having downwardly extending webs 25 which pass between the ends 5 and are secured thereto. The lower face of the webs 25 and an extension 27 of the link elements 7 lie on a level with the lower face of the arms 23 and thereby substantial sweep the profile of the conveyer channel 30-32.
Patent GB-1405110-A (GB)
Title: Continuous production of amino resin solutions
IPC: C08G12/02
Filed: 1972-12-12
Abstract: 1405110 Continuous production of ureaformaldehyde resins BADISCHE ANILIN- & SODA-FABRIK AG 12 Dec 1972 [26 Aug 1972] 57258/72 Addition to 1375502 Heading C3R An aminoplast resin solution is continuously manufactured by condensing an aminoplastforming material consisting predominantly or completely of urea with formaldehyde in the presence of a catalyst mixture of ammonia or amine and acid in homogeneous solution at or near its boiling point in a sequence of at least 3 stirred vessels, the amounts of catalyst and aminoplast-forming material (ARM) being adjusted so that the molar ratio of CH 2 O : AFM is 2À1-3 : 1 and the pH 5À5-7À5 in the first vessel, changing to 1À6-2À6 1 and pH 5-6 in the intermediate vessel(s) and 1À4-2À2 : 1 and pH 5À5-7À5 in the final vessel.
Patent GB-1172239-A (GB)
Title: Improvements in or relating to Organotin Compounds
IPC: C08G18/24
Filed: 1966-12-23
Abstract: 1,172,239. Organotin compounds. STAUFFER CHEMICAL CO. 23 Dec., 1966 [27 Dec., 1965], No. 57681/66. Heading C2J. [Also in Division C3] Novel organotin compounds have the formula wherein R<SP>11</SP> and R are selected from a C 1-12  aliphatic group, an alicyclic group, aromatic group and the corresponding halo- and cyanosubstituted groups, R<SP>1</SP> is hydrogen or one of the above groups, and n is 1, 2 or 3. These compounds may be used to prepare mixed tin salts, wherein n is 2 and one of the remaining valence bonds is satisfied by a halogen atom, by reaction with R<SP>11</SP> 2 SnX 2  (R<SP>11</SP> is as above and X is halogen). In the examples the following organotin compounds are prepared (1) triacetoximo butyl tin by reaction of the sodium salt of acetoxime with butyl tin trichloride, (2) diacetoximodibutyltin by reaction of (a) the sodium salt of acetoxime with dibutyl tin dichloride, (b) acetone oxime with dibutyltin dichloride, (c) acetoxime with dibutyltinoxide, (3) acetoximotributyltin by reaction of (a) the sodium salt of acetoxime with tributyltin chloride or (b) tributyltinoxide with acetoxime, and (3) dibenzaldoximedibutyltin by reaction of benzaldoxime with dibutyltin oxide. In a further example, triacetoximo butyltin and dibutyltin dichloride are reacted together to give a mixed salt of acetoxime-dibutyl tin chloride. The organotin compounds may be used as catalysts in the curing of silicone rubbers and in the production of flexible polyurethane foams (see Division C3).
Patent GB-1408796-A (GB)
Title: Circuitry for monitoring periodic signals
IPC: H04M19/02
Filed: 1972-12-15
Abstract: 1408796 Frequency detectors COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 15 Dec 1972 [15 Dec 1971] 57937/72 Heading H3A A monitor circuit comprises: two transistors T1, T2 of the same conductivity type with the collector of T1 connected to the base of T2 and an input signal to be monitored connected to the base of T1; time constant circuits RC1, RD1, C1, RC2, RD2, C2 connected to the emittercollector circuits of respective ones of the transistors so that one capacitor charges when the other discharges; and a detector coupled to the two time constant circuits for detecting a change in the rate of repetition of signals applied at the base of T1. When an input signal at point E1 goes positive, T1 conducts discharging C1 and cutting off T2 to charge C2. Conversely when the signal at E1 goes negative C1 charges and C2 discharges. A fall in the pulse rate outside predetermined limits allows C2 time to charge sufficiently to turn on unijunction transistor UST and fire thyristor TH. Relay RR is then actuated to give an indication that an abnormal condition occurs.
Patent GB-1347737-A (GB)
Title: Easy opening can ends and method of forming such ends
IPC: B21D51/38
Filed: 1971-12-14
Abstract: 1347737 Making cam ends E C FRAZE 14 Dec 1971 [31 Dec 1970] 57969/71 Headings B3A B3J and B3Q [Also in Division B8] A method of forming an easy-opening can end 11 comprises coining the end wall 16 of the can end to form shoulders and/or beads immediately adjacent to and on opposite sides of a scoreline 21 defining only a partially removable tear-out portion 15 in order to protect a consumer from injury on the edge of both the tear-out portion and the opening formed. In the embodiment shown, the end wall is coined between a die 41, having inner and outer recesses 45 and 43, and a coining tool 47 to form an inwardly offset tear-out-forming portion 15a and an intermediate offset thinned ledge 27. The line 21 is then scored in the ledge between the offsetting shoulders 35 and 37 by means of a scoring tool 57 and punch 59, the latter acting to stretch the offsetting shoulder 37 on scoring. The shoulders 35 and 37 are formed close to the scoreline, i.e. 0À015 inch, and act as guards for the edges formed on rupture of the scoreline. The thickness of the thinned ledge is 0À008 inch when using a can end stock thickness of 0À0135 inch and the scoreline penetrates to a depth of approximately half the ledge thickness. The scoreline terminates in oppositely and outwardly curved ends 23 to prevent complete detachment of the tear-out portion from the can end. A pull tab 19 is secured to the tear-out portion by an integral rivet 17, Fig. 4 (not shown), and the end wall at the base of the rivet is coplanar with, and of the same thickness as, the ledge to permit continuity of the scoreline. In other embodiments, Figs. 7-9, Fig. 10; Figs. 11 and 12, and Figs. 13-14, the guard arrangements are formed by ribs 141 and 143, or 241 and 243, or 341 and 343 coined in the can end on either side of the scoreline. In another embodiment, Figs. 15 and 16 (not shown), an offsetting portion 437 of an inwardly coined tear-out portion and a bead 441 extending outwardly of and around the scoreline 423 provide guard arrangements for the subsequently formed edges when the tear portion is removed.
Patent GB-1292530-A (GB)
Title: Process for the manufacture of sodium sulphate
IPC: C01D7/07
Filed: 1970-12-07
Abstract: 1292530 Sodium sulphate SOC ITALIANA RESINE SpA 7 Dec 1970 [23 Dec 1969] 58105/70 Heading C1A Sodium sulphate is prepared from ferrous sulphate by feeding the latter together with sodium hydroxide solution and a stream of molecular oxygen or a gas containing it to an agitated vessel, whereby ferric hydroxide is precipitated; separating the precipitate by filtration in a second vessel; adding additional sodium hydroxide to the residual solution so as to cause precipitation of part of the sodium sulphate; recovering this precipitated sodium sulphate, e.g. by means of a centrifuge, and recycling back the residual solution comprising sodium hydroxide and sodium sulphate to the initial reaction vessel. The ferrous sulphate is preferably that obtained as a waste product in the manufacture of titanium dioxide from ilmenite and sulphuric acid.
Patent GB-1213659-A (GB)
Title: Solenoid-actuated valve
IPC: F16K31/06
Filed: 1967-12-22
Abstract: 1,213,659. Valves. SOC. ANON DITE SERAM. 22 Dec., 1967 [27 Dec., 1966], No. 58476/67. Heading F2V. The armature 2 of a damped action solenoid valve is located in an oil filled chamber 17 formed by a non-magnetic cylinder 1, and operates closure member 8 through a push rod 7 which is not connected to either the armature or closure member. The valve operates progressively to move member 8 according to the degree of energization of solenoid 4.
Patent GB-1371358-A (GB)
Title: Conveying apparatus for containers
IPC: B07C3/08
Filed: 1971-12-17
Abstract: 1371358 Endless and roller conveyers ORGANISATION RALFS KG 17 Dec 1971 [7 Jan 1971] 58752/71 Heading B8A Containers (5) (Fig. 1, not shown) travelling on a conveyer 1 may be diverted on to a branch loop 2 by the operation of a deflector member 9. The return of the containers from the conveyer 2 to the conveyer 1 is controlled by a member 17. This has a part-rectangular recess in which the container is positively retained by the action of a spring-urged catch 24 which engages behind a shoulder of the container. When the front of the container engages a switch 19, the member 17 is rotated about a pivot 16, provided there is no signal transmitted by a container on the conveyer 1 upstream of the junction. A roller 25 on a member 22 carrying the catch 24, engages a guide 26 of the conveyer 1 (as shown in dot-dash lines) and causes the member 22 to pivot and release the container. When the latter has been carried clear of the member 17 by the conveyer 1, a switch 31 is operated. This permits the member 17 to be returned to its normal (full lines) position. When the member 17 is not in its normal position, it releases a spring urged stop 28 to block the conveyer 2. A rotary member 3 conveys the containers around a curve of the conveyer 2.
Patent GB-1376907-A (GB)
Title: Single-tube colour cameras
IPC: G02B27/46
Filed: 1971-12-21
Abstract: 1376907 Colour television WESTERN ELECTRIC CO Inc 21 Dec 1971 [21 Dec 1970] 59301/71 Heading H4F A single-tube colour television camera is provided with a colour striped filter 13 and a phaseonly diffraction grating 11 to filter out components of the incoming light at the horizontal (for horizontal scanning of tube 15) frequency corresponding to the horizontal repetition rate of the stripes of filter 13. The filter 13 may be formed of two striped filters 13a, 13b, each of the same stripe repetition rate and tilted at equal and opposite angles to the vertical, one filter having alternate clear and opaque-to-red stripes and the other filter alternate clear and opaque-to blue stripes, the resulting signal from tube 15 having a luminance component and a chrominance component having red and blue signals modulated on the same subcarrier, but frequency interleaved due to the equal and opposite tilts of filters 13a, 13b. The diffraction grating 11 is arranged to have zero transmission at the wavelengths of blue and red light over the frequency range occupied by the chrominance signal (Fig. 5, not shown). Diffraction grating 11 may be formed by developed dichromated gelatin deposited on a glass plate, or deposited directly on lens 12. Filters 13a, 13b may be deposited on the face of tube 15.
Patent GB-1333770-A (GB)
Title: Planetary piston compressor
IPC: F04C29/02
Filed: 1970-12-15
Abstract: 1333770 Rotary compressors BORSIG GmbH and WANKEL GmbH 15 Dec 1970 [19 Jan 1970] 59425/70 Heading F1F A planetary piston compressor of the trochoidal type having a single rotor and comprising a peripheral wall 1 and end walls 4, 5, is provided with housing covers 19, 20 through which at the drive end the eccentric carrying shaft extends and is sealed at 21. The compressor is used in a closed circuit containing a working medium to which lubricant is added and a passage 22 aligned with the inlet 20 is arranged adjacent the delivery valve to effect cooling and so that some intake gas is directed on to the end cover 19 to be deflected in to the space between the end wall 5 and the cover 19 around the seal 21 thus depositing lubricant for the seal. Depositing can be improved by grooves 23 on the cover. Other passages may be provided between the spaces formed by the covers 19, 20 to improve cooling effected by the working medium in the passage 22 and to equalize gas flow to inlets in the two end walls 4, 5. Counter-weights 17 may be provided.
Patent GB-1426531-A (GB)
Title: Apparatus for producing of ceramic branching pipe elements
IPC: B28B21/74
Filed: 1973-12-21
Abstract: 1426531 Moulding branched ceramic pipes ZAPADOCESKE KERAMICKE ZAVODY NARODNI PODNIK 21 Dec 1973 59473/73 Heading B5A A branched ceramic pipe is formed in a twopart mould 10, the inner bore of the pipe being defined by two tools each comprising a hollow tube 50 or 60 supporting a hollow sliding mandrel 70 or 80 closed by a closure 20 or 30 and having a sharp leading end. The mould 10 is connected by a ring 90 to an injection head 40. Sleeves 51, 61 mounted on the tools will define the inner surfaces of bell-ends moulded on the branched pipe. After the mould 10 is filled with ceramic material up to the closures 20, 30, these are removed and the mandrels 70 and 80 are forced successively into the mould with excess ceramic material passing into their bores. The branched pipe is severed from the material supply when the ring 90 has been slid away. The operation can be automated.
Patent GB-1359390-A (GB)
Title: Screw press
IPC: B30B1/22
Filed: 1972-12-28
Abstract: 1359390 Screw presses NIPPON STEEL CORP 28 Dec 1972 [28 Dec 1971 (3)] 59841/72 Heading B5F [Also in Division B3] In a forging screw press the flywheel 7 is driven by at least one linear motor 19. The flywheel drives a screw shaft 8 which may be in screw threaded engagement with the frame 1 for vertical movement of the press head 5. A plurality of motors 19 arranged around the periphery or top of the flywheel may be mounted on a support 20 mounted on the shaft for vertical but not rotational movement therewith. Alternatively the motors may be mounted on the frame with the flywheel have an axially extending flange around the periphery. In another embodiment the shaft is not vertically movable but is screw threaded to the press head. When the press head actuates a lower limit switch 24 the linear motors are reversed to raise the shaft and when an upper switch 26 is engaged the flywheel is braked by the motors.
Patent GB-1451499-A (GB)
Title: Oil-impregnated capacitor
IPC: H01G4/22
Filed: 1973-12-27
Abstract: 1451499 Capacitors MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 27 Dec 1973 [27 Dec 1972] 59882/73 Heading H1M A capacitor in which the dielectric comprises solely plastics film material is impregnated with a liquid insulant in the presence of which the film expands by no more than 0À5% at 80 C and the content of which in the film is no greater than 10 wt. per cent. The film material may be polypropylene, polystyrene, polyester, polycarbonate or polysulphonate. The impregnant may be a diaryl ethane, alkylnaphthalene or dibenzyltoluene.
Patent GB-1273860-A (GB)
Title: Closure feeding apparatus
IPC: B21D51/46
Filed: 1970-12-22
Abstract: 1,273,860. Feeding nested closures. W. R. GRACE & CO. 22 Dec., 1970 [7 Jan., 1970], No. 60881/70. Heading B8S. A mechanism for feeding closures from a stack comprises a pair of reciprocating slide bars 10, Fig. 1, and a pair of arms 13 which carry knives 18 and are pivoted about axes 15 by cams 16 running in tracks 11 in the slide bars 10. As the slide bars move to the right in Fig. 1, abutments 20 thereon move a closure which has been detached from the stack at 19 to a chuck 21. During this movement the arms 13 are pivoted inwards and the knives 18 detach another closure from the bottom of the stack. The slide bars move back to the left and the cycle is repeated.
Patent GB-1223536-A (GB)
Title: Improvements in bearing assemblies
IPC: D06F37/24
Filed: 1969-12-31
Abstract: 1,223,536. Washing machine mountings. FEDDERS CORP. 31 Dec., 1969 [19 Feb., 1969], No. 63533/69. Heading D1A. [Also in Division F2] In a bearing assembly a first bearing surface has a lining comprising P.T.F.E. and a second bearing surfaces mates with the lining and is suitably roughened so as to become coated with P.T.F.E. from said lining. The latter may contain from 70 to 80 per cent of P.T.F.E. 20 to 30 per cent of carbon and 1 per cent of a compatible colour identifier. The first bearing surface may be in the form of a truncated hemisphere and the second bearing surface may have a hemispherical shape. A resilient pad may be positioned between the first bearing surface and the lining. The bearing assembly may be mounted in a washing machine and may comprise a truncated hemisphericalshaped position 31 of a base 8, a resilient pad 32, a lining 33 of 'P.T.F.E. &c., a reinforcement plate 34, and a hemispherical surface which is formed in an upper suspension housing 20 of the washing machine and which mates with the P.T.F.E. &c liner 33.
Patent GB-644685-A (GB)
Abstract: 644,685. Horseshoes. PLAMPIN, W. June 18, 1948, No. 16384. [Class 67] A horseshoe is constructed from a length of light alloy 5 which is extruded with a groove 7 and a recess 6 provided with nail holes (not shown), a hard metal strip 8 being inserted in the groove and firmly gripped by deformation of the alloy when the length is bent to the required shape. In a modification, Fig. 3, angle-section strip is' used which may be notched to facilitate bending. The angle-section may stand proud of the wearing surface of the alloy, as shown, or may be flush-fitted in a recess. According to the Provisional Specification, two spaced metal strips are used.
Patent GB-664987-A (GB)
IPC: F22B37/54
Abstract: 664,987. Steam-boiler scum and blowdown apparatus. GULOWSKI, J. Sept 13, 1949 [Jan.12, 1949], No. 23635/49. Class 123(ii) The outlet pipe 2, 5 from boiler scum collectors 31 to an external control valve 6 has an interposed throttling device 4 which comprises internal diaphragms 7 with staggered perforations 8 and is adapted to reduce the flow speed therethrough. As shown, each collector has an associated float 3. Mud is removed from the bottom of the boiler by a perforated conduit 9 which is connected to an external valve 15 through a similar throttling device 13 with, if desired, auxiliary throttling devices 10. 11, 17, 18.
Patent GB-2019275-A (GB)
Title: Improvements in or relating to foundry cores
IPC: B22C9/10
Filed: 1979-03-26
Abstract: A method of producing a foundry core comprises coating those surfaces of a core box which define the completed core with a layer or layers of ceramic material, solidifying the ceramic material within the core box, and subsequently removing the core from the core box. <IMAGE>
Patent GB-2037304-A (GB)
Title: Polyurethane foam
IPC: C08J9/00
Filed: 1979-06-13
Abstract: A reinforced hydrophilic polyurethane foam comprises a foam matrix of a poly(urea-urethane) having an oxyalkylene backbone containing at least 40 mole % oxyethylene, said matrix having uniformly distributed therein 1 to 15% wt of substantially hydrophilic reinforcing fibres of a homo- or copolymer of vinyl alcohol. The foams have improved tensile and tear properties when wet and a reduced resistance to swelling upon wetting and shrinking upon drying out. The foams are useful as sponges.